Reading of 46* at BWI airport sets low mark for June 22

A record low temperature for this date was set today when the mercury dropped to 46 degrees at 5 a.m. at Baltimore-Washington International Airport, the National Weather Service said.

And if you like this stuff, you'll probably enjoy it through Friday.

The low temperature record at the Custom House in Baltimore -- 53 degrees set in 1972 -- was tied this morning at 5 a.m. The previous low record at the airport was 51 degrees set in 1963.

Bill Miller, a meteorologist at BWI, said a Canadian air mass is responsible for the unseasonably cool weather that arrived Saturday evening.

If you're thanking Canada today, put in a plug for New England Wednesday, Thursday and Friday. That's when another cool mass is expected to stall over that part of the nation and pump more cool air into the mid-Atlantic region.

Mr. Miller said another record low should be established early tomorrow, just before the high pressure system associated with today's cool weather moves off and is replaced by another.

The average temperature for this time of the year is 85-86 degrees, the meteorologist said.